Update setup.py

Author: vanderlei-filho

setup.py

@@ -8,7 +8,7 @@
             This is a sample python package for encapsulating custom
             tranforms from scikit-learn into Watson Machine Learning
       ''',
-      url='https://github.com/vnderlev/sklearn_tansforms/',
+      url='https://github.com/vnderlev/sklearn_transforms',
       author='Vanderlei Munhoz',
       author_email='vnderlev@protonmail.ch',
       license='BSD',